GENERAL CONSIDERATIONS Technique Tips : Create a shoulder (preferred) or deep chamfer with rounded gingivo-axial line angles. Be sure to carry the margin interproximally to reduce metal shadow and ensure esthetic quality. For a porcelain to margin finish, prepare a chamfered shoulder 0.5 mm subgingivally on the labial aspect of the tooth. Tissue must be retracted during impression so that the resultant die is a complete reflection of the prepared shoulder. For superior esthetics, you may wish to select a PORCELAIN BUTT MARGIN. ANTERIOR CROWN PREPARATION Technique Tips : Incisal reduction should allow for no less than 2 mm of porcelain in final restoration. Ensure a minimum labial reduction of 1.5 mm (insufficient labial reduction can cause poor translucency, bucked centrals and angry patients). POSTERIOR CROWN PREPARATION Return to Arizona Crown product page